Jump to content


Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)
Guest Message by DevFuse
 

Photo
- - - - -

Magnet


  • This topic is locked This topic is locked
103 replies to this topic

#101 kvksivakumar

kvksivakumar

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 12 June 2010 - 05:46 PM

suspend them freely and see which of them shows up north and south directions
  • 0

#102 samaira

samaira

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 16 June 2010 - 01:40 PM

try rotating both the rods on ground. the one which always stops at one dedicated direction(which would be nprth0sputh and viceversa) that is magnet. the other one which would stop at different direction is iron rod.
  • 0

#103 the_thinker

the_thinker

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 14 February 2011 - 02:03 AM

I thought about this all day, and after coming up with a solution I was surprised to come home and read that the provided solution actually seemed much more complicated than the one I came up with, it's usually the other way around.

Alternate solution: Break one or both rods and the one who's pieces attract or repel eachother is your magnet.


Thats really good, but how would you break the rods? If they were skinny enough you might be able to snap it, but if it were too thick and you dropped it or banged it around you would mess up the domains, making it no longer a magnet.
  • 0

#104 Egomaniac

Egomaniac

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 11 June 2011 - 03:32 PM

Magnetize temporarily. if you work out a set of combinations it would not be difficult to rule out the non magnetic rod. since the temporary magnet would not have a fixed north and south pole if re magnetized to check for combinations.
  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users